CLOCK SIGNAL SWITCHING DEVICE, CLOCK SIGNAL SWITCHING METHOD, DATA BUS SWITCHING DEVICE, AND DATA BUS SWITCHING METHOD

摘要

A clock signal switching device includes: a plurality of signal synchronization generation means for generating mask signals and synchronized switching signals; a plurality of clock signal mask means for generating masked clock signals; a synchronized switching signal selection means for selecting one from among the synchronized switching signals; and a masked clock signal selection means for selecting one from among the masked clock signals.